CN201454354U - Semi-dry smoke pollutant removing device - Google Patents
Semi-dry smoke pollutant removing device Download PDFInfo
- Publication number
- CN201454354U CN201454354U CN2009201225469U CN200920122546U CN201454354U CN 201454354 U CN201454354 U CN 201454354U CN 2009201225469 U CN2009201225469 U CN 2009201225469U CN 200920122546 U CN200920122546 U CN 200920122546U CN 201454354 U CN201454354 U CN 201454354U
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- flue gas
- reaction tower
- absorption reaction
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- pollutant
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Abstract
The utility model relates to a semi-dry smoke pollutant removing device, which comprises an absorbent preparation system, a pollutant absorbing and removing system and a product collecting and storing system. The absorbent preparation system comprises a powder bin, pulping equipment, feed liquid filter equipment and slurry storage equipment which are sequentially connected, the pollutant absorbing and removing system comprises an absorption reaction tower and a dust collector, the dust collector is connected with an air outlet of the absorption reaction tower, the product collecting and storing system comprises conveying equipment and an ash bin which are sequentially connected, the slurry storage equipment is connected with the absorption reaction tower, the bottom portion of the absorption reaction tower is connected with the ash bin via the conveying equipment, and the dust collector is connected with the ash bin via the conveying equipment. The semi-dry smoke pollutant removing deice improves environments, saves cost and realizes recycling of resources.
Description
(1) technical field
The utility model relates to a kind of flue gas pollutant semidry method and removes device, is applicable to the smoke gas treatment of all kinds of boilers, kiln, incinerator etc.
(2) background technology
Energy-saving and emission-reduction have become the emphasis of current macro adjustments and controls, and government has determined that per GDP energy consumption reduction about 20% the Eleventh Five-Year Plan period and discharge of major pollutant reduce by 10% restrictive index, and policy was a target with 2010, sulfur dioxide (SO
2) discharge capacity reduces to 2,295 ten thousand tons by 2,549 ten thousand tons in 2005, yet according to statistics, China SO in 2006
2Discharge capacity still surpassed 2,500 ten thousand tons, still be SO in the world
2The first discharging big country; Simultaneously, nitrogen oxide (NO
x) discharge capacity increase fast, it is estimated, to China NO in 2010
xDischarge capacity will reach 2,194 ten thousand tons.Highly energy-consuming first quarter industry came back once again in 2007, account for six big highly energy-consuming industry value addeds such as the electric power, iron and steel of national industrial energy consumption and sulfur dioxide (SO2) emissions nearly 70%, coloured, building materials, PETROLEUM PROCESSING, chemical industry and increase by 20.6% on a year-on-year basis, than accelerating 6.6 percentage points the same period in 2006.This shows that " many pollution controls " will be the reduction of discharging emphasis topic of following significant period of time.
At present, multicontaminated control mainly is to concentrate on SO at flue gas in the world
2And NO
xRemove.Flue gas desulfurization and denitration technique is that traditional flue gas desulfurization technique (FGD) and SCR denitride technology (SCR) are joined together and use more widely, removes the SO in the flue gas respectively
2And NO
xThis United Technologies technology is ripe, and has pollutant removing efficient preferably, but owing to adopt two covering devices to remove different pollutants, therefore exists floor space big, and flow process is numerous and diverse, shortcomings such as investment and operating cost height.Therefore, domestic and international many researchers all are devoted to develop system desulfurizing and denitrifying process technology simultaneously.These technology can be divided into two kinds of dry method and wet methods.
1) wet method while desulphurization denitration technology: this technology is on the basis of wet desulphurization technology, by add the additive that increases NO solubility in absorbent, makes SO
2And NO
xBe absorbed simultaneously.By different oxidation absorption process and the complexed absorption methods of being divided into of additive with the NO mode of action.This type of technology has shortcomings such as producing acid waste liquid, equipment corrosion are strong, absorbent preparation cost height.
2) dry method while desulphurization denitration technology: this technology mainly comprises activated carbon method, catalytic oxidation-reduction method, plasma method and direct catalytic reduction method etc. at present.Equally, also there are various shortcomings in dry method, has charcoal loss height as activated carbon method, and equipment is huge; The catalytic oxidation-reduction method exists catalyst stability low; Electron beam plasma method existence power consumption is high, maintenance cost is high.
(3) utility model content
Technical problem to be solved in the utility model is to provide a kind of semidry method of removing multiple pollutant simultaneously to remove device, promptly design the alkaline absorbent of different proportionings at the flue gas different component, spray into flue gas at absorption tower neutral and alkali absorbent with the form of mist, remove pollutant by the reaction of pollutant in absorbent and the flue gas.The product that obtains has been avoided the generation of a large amount of waste water based on the solid particle salt, and solid product can further be recycled simultaneously.
A kind of flue gas pollutant semidry method removes device, comprises absorbent preparation system, pollutant absorbing and removing system and product collection storage system,
Described absorbent preparation system comprises filler bin, pulping equipment, feed liquid filter plant and the slurries bunkerage that connects in turn; Described pollutant absorbing and removing system comprises absorption reaction tower and deduster, and deduster connects absorption reaction tower air outlet; Described product collection storage system comprises conveying equipment and the Hui Cang that connects in turn; Described slurries bunkerage connects the absorption reaction tower, and the absorption reaction tower bottom connects grey storehouse through conveying equipment, and deduster connects grey storehouse through conveying equipment.
Preferably, described grey storehouse also connects the circulation feed bin through conveying equipment.
Preferably, described deduster connects chimney through air-introduced machine.
Preferably, described absorption reaction tower is the rotating spraying tower.
Preferably, described absorption reaction tower is the double flowing nozzle spray drying tower.
Preferably, described absorption reaction tower is a circulating fluid bed reactor.
Preferably, described deduster is an electric cleaner.
Preferably, described deduster is a sack cleaner.
The absorbent that the utility model adopts is recommended to contain a small amount of flyash based on kemidol, adds different additive (KMnO simultaneously
4And NaClO
2) and make, form at different flue gases, adopt different proportionings.
The utility model is at the different component flue gas, utilizes the different alkaline absorbent of proportioning efficiently to remove SO in the flue gas
2, NO
X, multiple pollutants such as HCl, HF, apparatus structure is simple, can be applicable to the processing of multiple flue gas, as fire coal boiler fume, flue gas of garbage furnace, sintering device flue gas, cement industry stove flue gas etc.The utility model technology not only solved present wet method simultaneously the desulphurization denitration technology produce problems such as a large amount of acid waste liquids, equipment corrosion are strong, absorbent preparation cost height, and adapt to very much pollutant burden, the variation of flue gas load, characteristics such as the system start-stop is convenient, and reduced the investment operating cost of cost of material, the complexity that has reduced equipment and the technology of pollutant control.Enforcement of the present utility model has improved environment, has saved cost, has realized the resource circulation utilization.
(4) description of drawings
Fig. 1 removes the structural representation of device for the utility model flue gas pollutant semidry method.
(5) specific embodiment
Below by drawings and Examples the technical solution of the utility model is done detailed description further, but protection domain of the present utility model is not limited to this.
With reference to Fig. 1, a kind of flue gas pollutant semidry method removes device, comprises absorbent preparation system, pollutant absorbing and removing system and product collection storage system,
Described absorbent preparation system comprises filler bin, pulping equipment, feed liquid filter plant and the slurries bunkerage that connects in turn; Described pollutant absorbing and removing system comprises absorption reaction tower and deduster, and deduster connects absorption reaction tower air outlet; Described product collection storage system comprises conveying equipment and the Hui Cang that connects in turn; Described slurries bunkerage connects the absorption reaction tower, and the absorption reaction tower bottom connects grey storehouse through conveying equipment, and deduster connects grey storehouse through conveying equipment.
Described grey storehouse also connects the circulation feed bin through conveying equipment.
Described deduster connects chimney through air-introduced machine.
Described absorption reaction tower is the rotating spraying tower.
Described deduster is a sack cleaner.
Kemidol (requiring particle diameter to be no more than 1mm, purity greater than 80%), flyash etc. are by being delivered to the filler bin storage. and quantitatively deliver to pulping equipment in the technology Calculation ratio by the metering conveying equipment afterwards and prepare absorbent slurry, simultaneously according to the different additives that add different amounts of smoke components. the slurries that make are owing to exist part bulky grain solid, so use slurry filtering equipment that slurries are filtered, can adopt rotary filter or other filter, it is temporary that clear liquid after the filtration is delivered to storage facilities, and filter residue returns pulping equipment and digests once more.
The combustion product gases upper lateral enters the absorption reaction tower, spray into absorbent slurry simultaneously, can adopt forward the top to spray into or side direction sprays into, vaporific particle of absorbent and flue gas be abundant haptoreaction in reaction tower, make pollutant removing get off, because flue-gas temperature is higher, evaporate moisture in the slurries in the time of pollutant removing simultaneously, obtained the solid granulates product.Because flue gas is the mode with eddy flow in tower, therefore, has the partial reaction product to be precipitated at the bottom of the tower.Delivering to product ash warehousing by conveying equipment after this portion of product is collected puts.
The flue gas that removes pollutant enters deduster after reaction tower comes out, the employing sack cleaner further removes the particulate solid in the flue gas.Particulate solid under removing is delivered to grey warehousing by conveying equipment after part is collected and is put partly as the circulation powder.Adopt sack cleaner; useful to the multicontaminated efficient of further raising; filter cake contains chemical substance; the gas that contains pollutant by the time chemical reaction can further take place; usually can improve the removal efficient about 10%, so when requiring the high pollution thing to remove efficient, take behind the absorption reaction tower, to connect sack cleaner.
Claims (8)
1. a flue gas pollutant semidry method removes device, comprises absorbent preparation system, pollutant absorbing and removing system and product collection storage system, it is characterized in that:
Described absorbent preparation system comprises filler bin, pulping equipment, feed liquid filter plant and the slurries bunkerage that connects in turn; Described pollutant absorbing and removing system comprises absorption reaction tower and deduster, and deduster connects absorption reaction tower air outlet; Described product collection storage system comprises conveying equipment and the Hui Cang that connects in turn; Described slurries bunkerage connects the absorption reaction tower, and the absorption reaction tower bottom connects grey storehouse through conveying equipment, and deduster connects grey storehouse through conveying equipment.
2. the flue gas pollutant semidry method according to claim 1 removes device, it is characterized in that: described grey storehouse also connects the circulation feed bin through conveying equipment.
3. the flue gas pollutant semidry method according to claim 1 or 2 removes device, it is characterized in that: described deduster connects chimney through air-introduced machine.
4. the flue gas pollutant semidry method according to claim 1 removes device, it is characterized in that: described absorption reaction tower is the rotating spraying tower.
5. the flue gas pollutant semidry method according to claim 1 removes device, it is characterized in that: described absorption reaction tower is the double flowing nozzle spray drying tower.
6. the flue gas pollutant semidry method according to claim 1 removes device, it is characterized in that: described absorption reaction tower is a circulating fluid bed reactor.
7. the flue gas pollutant semidry method according to claim 1 removes device, it is characterized in that: described deduster is an electric cleaner.
8. the flue gas pollutant semidry method according to claim 1 removes device, it is characterized in that: described deduster is a sack cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201225469U CN201454354U (en) | 2009-06-22 | 2009-06-22 | Semi-dry smoke pollutant removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201225469U CN201454354U (en) | 2009-06-22 | 2009-06-22 | Semi-dry smoke pollutant removing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201454354U true CN201454354U (en) | 2010-05-12 |
Family
ID=42381698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201225469U Expired - Fee Related CN201454354U (en) | 2009-06-22 | 2009-06-22 | Semi-dry smoke pollutant removing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201454354U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102908889A (en) * | 2012-10-23 | 2013-02-06 | 鞍钢股份有限公司 | Sintering fuel gas desulfurization and denitrification system and method |
| CN104874481A (en) * | 2015-06-26 | 2015-09-02 | 浙江中泰环保股份有限公司 | Wet type electrostatic dust collector for semidry method (CFB) waste water zero discharging |
| CN107300188A (en) * | 2017-03-06 | 2017-10-27 | 上海发电设备成套设计研究院 | A kind of smoke comprehensive energy-saving and emission-reduction system for taking into account low-temperature corrosion and UTILIZATION OF VESIDUAL HEAT IN |
-
2009
- 2009-06-22 CN CN2009201225469U patent/CN201454354U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102908889A (en) * | 2012-10-23 | 2013-02-06 | 鞍钢股份有限公司 | Sintering fuel gas desulfurization and denitrification system and method |
| CN104874481A (en) * | 2015-06-26 | 2015-09-02 | 浙江中泰环保股份有限公司 | Wet type electrostatic dust collector for semidry method (CFB) waste water zero discharging |
| CN107300188A (en) * | 2017-03-06 | 2017-10-27 | 上海发电设备成套设计研究院 | A kind of smoke comprehensive energy-saving and emission-reduction system for taking into account low-temperature corrosion and UTILIZATION OF VESIDUAL HEAT IN |
| CN107300188B (en) * | 2017-03-06 | 2019-07-02 | 上海发电设备成套设计研究院 | A kind of smoke comprehensive energy-saving and emission-reduction system for taking into account low-temperature corrosion and UTILIZATION OF VESIDUAL HEAT IN |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20130622 |